只有高氯酸盐表现有显著的感度和可能具有起爆性能.Only the perchlorate shows marked sensitiveness and possibly initiating properties.目的〕研究建立测定烟火药剂中高氯酸盐含量的方法.A method for determination of perchlorates content in pyrotechnic compositions was establ...
肯尼亚的罗伯特·基布是800米决赛入围者中速度最快的选手.Kenya's Robert Kibe was the fastest qualifier for the 800 metres final.“小子，这不关你的事！”麦克洛斯基威胁道。"This ain't no affair of yours, boy!" McClosky said threateningly.基冈为南安普敦队踢了两个赛季，共上场68次，进...